Slip-joint machine.



J. P. HARNER.

SLIP JOINT MACHINE.

APPLICATION IILED MAY 13, 1913.

Patented Jan. 13, 1914 2 sums-sum 1.

@HIIHIIHHMU M INVENTOR WITNESSES $240M W- m I. t a, V

ATTORNEYS J. P. HARNER.

SLIP JOINT MACHINE. APPLIOATION FIYLED MAY 13, mg.

Patented Jan. 13, 1914.

2 SHBETBBHBET 2.

a/ 26a 6 Mb. 1

ATTORNEYS WITNESSES troughs.

l HiIllTEU FSTATES PATENT ornion.

JOSEPH P. HARNER, OF NEVADA, MISSOURI,/ASSIGNOR F ONE-HALF '10 JOSEPH P. HARNEIRV, 0NE-FOURTH TO LLEWELLYN V. ALLISON, AND oNE FOURTll TO DON F.

HARNER, ALL OF NEVADA, MISSOURI.

SLIP-JOINT IVLACHINE.

, Specification of Letters Patent. Application filed May 13, 1913. Serial N 0. 767,309.

Patented Jan, 113, i914 the following is afull, clear, and exact description.

My invent-ion relates to a machine for V producing on an edge of a sheet of metal,

slip joint members, and more particularly the invention has for its design the produc tion of a machine especially adapted for the formation of slip joint members on eave 'gn of the invention is to provide a machine for its special purpose, in

A further. do

which a single element will constitute a com bined male dieland resser, bar coracti with an anvil arranged-1n connection W11;

which is a movable lip, so that by successive movements of thesingle operating member, the sheet of metal will be given bends in one operation, and in the next operation the bends will .be compressed. v v The invention will be particularly ex.-

plained in the specific description following. Reference is to be had to the accompan ing drawings forming a part of this spec cation, in which similar characters of refer-.

once indicate corresponding parts in all the views.

Figure 1 is a side elevation of a s11 -]01I1i3 machine embodyin my invention; Fig. 2 is a plan view thereo Fig. 3 is a longitudinal vertical section showing the parts after the first operation; Fig. i is a similar view with the parts arranged for a movement to give the completing operation; Fig. '5 is a similar view re resenting the parts after having produced the completing operation; Fig. "6

is a fragmentary side View of the completed material; and Fig. 7 is a side elevation on a reduced scale showing a slight modification of the actuating means.

In constructinga slip -joint machine in accordance with the illustrated example, two

main members are provided, comprising a base l0 and an anvil 11. The anvil overhangs the ,base'member and is in fixed relation thereto, either by forming the said members integral or suitably securing the 'oneto the other.v In connection with the anvil 11a lip 12 is employed and arranged at the front edge of the'anvil, at a contracted throat 14; leading to the space 13 between the base and anyll. The lip is movable, ashereinafter described, to a position awayfrom the throat or at the throat, and when in position at'the throat its inner surface forms an -internal angle with the anvil surface.

Within the space 13 and between the base and anvil, operates a bar 15 constituting a combined male die and presser bar to perform successive operations on the material A, the front end 15 of the bar being beveled to correspond with the internal angle formed by the anvil and its depending 11p.

As a means for actuating the bar 15,11andle arms 16 .are provided at each side, having a cross handle 17. The arms '16 are pivoted to the base, as at 18, and to the bar 15 at 19, forminga connection between said bar and the basefso that the rocking of the handle'l7 and the arms 16 will (raise and lower the bar 15 toward and from the anvil 11. In order that themovement of the bar 15 may be a arallel one, additional links 20 are provide at each side, and pivoted at their ends respectively tothe base and the bar as at 21, 22. f

At the front of the machine a gage table 23 is provided, having a vertical flange 24,

said table being secured 111 any suitable manner as by a flange 23 thereon and bolts or set screws 23". To strengthen the connection between the base and anvil, and enable the latter to better resist ressure exerted on the under side by the ar 15, side braces or tie straps 25 connect the base and anvil, the said braces or straps being suit ably secured by set screws25 or'equivalent means.

Between the anvil surface and the bar 15, I provide a member 26, desirably in the form of a tongue, which may be secured at one end to the anvil as at 26; the front end being free, and preferably the element is resilient, or otherwise formed or arranged to permit a movement of its front end toward and from the anvil. The function of the tongue 26 is in the first operation to form a, spacingmember between the anvil and .the bar 15,-,and secondly, to receive an edge of the material A between the tongue in the form of a pin or pins the bar 15 and form a gage. The slot 32 permits of the parallel movement of the ear 15.

The lip 12 has at one end hinge connec- Lons as at 27, with the anvil 11, so as to wing toward and from the front edge of said anvil, the outer position being indicated by dotted lines in Fig. 2. Near the opposite end any suitable handle or knob 28 is provided for swinging the lip and the said lip is held in the closed position at the throat 14. by a pin 29, or equivalent means. The pin 29 is carried by the lip 12 and the latter is formed with a slot 12 to receive a flange 30 formed on the front edge of the anvil 11, the pin 29 being adapted to pass through the said flange, as indicated in Fin. 5.

With the described construction sheet of material A is passed into the machine, as in Fig. .1, the gage flange 24 and gage stop 31 serving to properly position the material, itbeing understood that thelip 12 is at this time in position at the throat 14. Upon a forward throw of the handle 17, the arms 16 will carry the bar 15 upwardly and forwardly, causing the front, end 15 thereof to givebends to the material, as indicated at a a; said bends may be termed Z-bends. In this operation the tongue 26 spaces the bar 15 from the anvilsurface, the tongue being substantially equal to the thickness of the sheet material A, and said tongue terminates short'of the front end of the anvil and short of the lip 12, leaving a space in front of the tongue to accommodate the edge portion formed by the bend a of the material. The pin 29 is now withdrawn to release the lip 12, and the latter is swung away fromthe throat 14: and from, the front edge of the anvil to the position indicated in Fig. 2. The bar 15 having acted as a male die in the first movement is lowered to the position shown in Fig. f, the resilient tongue 26 springing away at its front edge from the anvil surface so that the material A may be formed by the bend a thereof between the tongue and the anvil surface, as in 'Fig. 4; thus the front end of the tongue in this ,bperation serves as a stop and support foi" the bent portionof the material. The handle pressed inward with the edge portion 17 is new again thrown forward so that the arms 16 will now carry the bar 15 beneath the Z-bends of the material which bar will act as a hammer or presser bar to compress the previously bent portions into parallelism or substantial parallelism, as shown in Figs. 5 and 6 and indicated by the characters (1 a The interposition of the tongue '26 between two of the bends will serve to form a channel between the bends, as at a (Fig. 6). It will thus be seen that a single main, operative member15 serves in succession the functions of a male die and a hammer or presser, it being only "necessary between the two movements for the operator to manually throw the lip 12 to one side. Thus a machine of simple form and positive action serves effectually for the forming of slip joints on eave troughs. In the form shown in Fig. 7, the parts are in. all respects the same as those previously described, except that the operating arms 1630f the bar 15 are continued downwardly and connect with treadle arms 16", so that the machine is foot operated instead of hand-controlled.

The anvil 11 may have exterior strengthening ribs 11 thereon. i

-T he described construction affords a practical means for carrying my invention into effect, and I would state in conclusion that I do not limit myself strictly to the mechanical details herein illustrated, since manifestly the same can be considerably varied without departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A machine for forming slip oint members on sheet metal, comprising two spaced elements in fixed relation, the one constituting an anvil, there being a .throat leading to the space between the two members and accommodating the material, a lip movable to 'a position at the throat, or away from said throat and forming an internal angle with the anvil surface when at the throat, a bar constitut' a combined male die and presser dispose between the two members, and means for moving the bar toward and from the anvil either when the lip is in position at'the throat, or in a position away from the throat tocause the movement of the bar to have a bending action in connection with theanvil surface and lip, and then to cause the movement of the bar to have a compressing action in connection with the anvil surface alone in the absence of the lip.

2. A machine for'forming slip joint members on sheet metal, comprising two elements in fixed relation, the one overhanging the other forming I an intervenlng space, the overhangingmember constitutlng an anvil and there being a contracted throat leading to the said space for the entrance and withdrawal of the material, a-manually-controlled lip movable to a position at the throat or away from said throat, and forming an internal angle with the anvil surface when at the throat,'a bar constituting a combined male die and presser disposed in the space between the two members inward from the throat, and means for moving the bar toward and from the anvil surface either when The lip is in position at the throat min a position away from the throat, to cause the movementof the bar to have a bending action in connection with the anvil surface and lip, and then to cause the movement of the bar to have a com ressing action in connection with the anvil surface alone, in the absence of the lip.

3. A-machine for forming slip joint members, comprising two spaced elements, the

,one constituting an anvil, there being a throat leading to the space between the two members and accommodating the material, a lip movable to a position at the throat or away from said throat, and forming an internal angle with the anvil surface when at the throat, a bar constituting a combined male die and presser disposed between the two, members, and means for moving the bar relatively to the ,anvil surface either when the lip is in a position at the throat or in a position away from the throat to cause the: movement of the bar to have a bending; action in connection with the anvil surface and lip, and then to cause the move ment of the bar to have a compressing ac-'- tion in connection with the anvil surface alone in the absence of the lip.

4. A slip joint machine, comprising a base having a anvil overhanging the base and in fixed relation thereto, a combined male die and presser bar mounted between the base and the anvil and having parallel movement to and from the anvil, means for actuating said bar, and a lip carried by the anvil at the front edge-thereof, depending below the anvil surface and forming with the latter an internal angle, said lip having a swinging movement on the anvil.

5. The combination of an overhanging anvil, a bar movable toward and from the anvil, means for actuating said bar, and a lip pivotally secured to the anvil at the front edge thereof, depending below the same, the depending port-ion forming with the anvil an internal angle, there being a flange on the anvil and the lip being recessed to receive said flange, and a pin for fastening the lip to the said flange.

6.'The combination of a bar, an anvil, and a member co-acting with the anvil to form an-angle, means to move the bar relatively to the anvil and the said member to act on the material and a tongue arranged between the anvil and the said bar, the

tongue having a free edge portion movable toward and from the anvil in response to the movements of the said bar.

7. A slip joint machine comprising a base and an overhanging anvil, the anvil bein provided with a lip depending below the anvil surface, a combined male die and presser bar disposed between the anvil and base, and a gage device between the base and anvil, the said bar being movable toward and from the anvil and relatively to the said gage device, the front edge of the bar being formed to correspond with the mentioned angle of the anvil and its co-acting lip.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LUTHER G. HUITT, JACOB J EDDLEMAN.

ocpiea of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

